Git

I was recently involved in a collaborative paper writing effort, and the people involved chose to use Overleaf as the main writing platform. Overleaf and ShareLaTeX, now under one roof, are the major online text editors for LaTeX files.
The idea behind Overleaf is great - it’s like Google Docs for LaTeX documents. The problem is I’m not crazy about doing my writing on a web app - just a personal preference.